40630212 has 108 divisors (see below), whose sum is σ = 123492096. Its totient is φ = 11219040.

The previous prime is 40630211. The next prime is 40630223. The reversal of 40630212 is 21203604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40630211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54313 + ... + 55055.

Almost surely, 2^40630212 is an apocalyptic number.

40630212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40630212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61746048).

40630212 is an abundant number, since it is smaller than the sum of its proper divisors (82861884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40630212 is a wasteful number, since it uses less digits than its factorization.

40630212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40630212 is about 6374.1832417966. The cubic root of 40630212 is about 343.7819173890.

Adding to 40630212 its reverse (21203604), we get a palindrome (61833816).

The spelling of 40630212 in words is "forty million, six hundred thirty thousand, two hundred twelve".